/*
 * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.truffle.espresso.processor.builders;

import java.util.HashMap;
import java.util.Map;

import com.oracle.truffle.espresso.processor.ProcessorUtils;

public class AnnotationBuilder extends AbstractCodeBuilder {
    private static final String AT = "@";

    private final String name;
    private final Map<String, String> values = new HashMap<>();
    private boolean withLineBreak = false;

    public AnnotationBuilder(String name) {
        this.name = name;
    }

    public AnnotationBuilder withValue(String key, String value) {
        return withValue(key, value, true);
    }

    public AnnotationBuilder withValue(String key, String value, boolean stringify) {
        values.put(key, stringify ? ProcessorUtils.stringify(value) : value);
        return this;
    }

    public AnnotationBuilder withLineBreak() {
        this.withLineBreak = true;
        return this;
    }

    @Override
    void buildImpl(IndentingStringBuilder isb) {
        isb.append(AT).append(name);
        if (!values.isEmpty()) {
            isb.append(PAREN_OPEN);
            boolean first = true;
            for (Map.Entry<String, String> entry : values.entrySet()) {
                if (first) {
                    first = false;
                } else {
                    isb.appendSpace(',');
                }
                isb.append(entry.getKey()).append(" = ").append(entry.getValue());
            }
            isb.append(PAREN_CLOSE);
        }
        if (withLineBreak) {
            isb.appendLine();
        } else {
            isb.appendSpace();
        }
    }
}
